:root {
  --brand: #FF6C0C;
  --brand-glow: rgba(255, 108, 12, 0.45);
  --neon-orange: #FF6C0C;
  --neon-blue: #00D4FF;
  --neon-green: #39FF14;
  --neon-purple: #B026FF;
  --neon-red: #FF2E63;
  --neon-cyan: #00FFF5;
  --radius: 14px;
  --sidebar-w: 280px;
  --sidebar-collapsed-w: 72px;
  --topbar-h: 64px;
  --font: "Segoe UI", "Candara", "Trebuchet MS", sans-serif;
  --display: "Segoe UI Semibold", "Segoe UI", sans-serif;
}

html[data-theme="dark"] {
  --bg: #070b14;
  --bg-elevated: #0f1626;
  --bg-soft: #141e33;
  --border: rgba(255, 108, 12, 0.18);
  --text: #eef2ff;
  --text-muted: #9aa6c0;
  --shadow: 0 10px 40px rgba(0,0,0,.45);
  --card-bg: linear-gradient(160deg, rgba(20,30,51,.95), rgba(10,14,26,.98));
  --input-bg: #0b1220;
}

html[data-theme="light"] {
  --bg: #f3f5fa;
  --bg-elevated: #ffffff;
  --bg-soft: #eef1f8;
  --border: rgba(255, 108, 12, 0.22);
  --text: #152038;
  --text-muted: #5b6b86;
  --shadow: 0 10px 30px rgba(21,32,56,.08);
  --card-bg: linear-gradient(160deg, #fff, #f7f9fd);
  --input-bg: #fff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: var(--font); background: var(--bg); color: var(--text); }
a { color: var(--brand); text-decoration: none; }
button, input, select, textarea { font: inherit; }

.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0; background: var(--bg-elevated);
  border-right: 1px solid var(--border); position: sticky; top: 0; height: 100vh;
  overflow-x: visible; overflow-y: auto; transition: width .25s ease; z-index: 40;
}
.app-shell.sidebar-collapsed .sidebar {
  width: var(--sidebar-collapsed-w);
  margin-left: 0;
  overflow-x: visible;
}
.app-shell.sidebar-collapsed .brand-text,
.app-shell.sidebar-collapsed .nav-label,
.app-shell.sidebar-collapsed .caret {
  display: none !important;
}
.app-shell.sidebar-collapsed .sidebar-brand {
  justify-content: center;
  padding: 14px 8px;
  gap: 0;
}
.app-shell.sidebar-collapsed .brand-mark {
  width: 40px;
  height: 40px;
}
.app-shell.sidebar-collapsed .sidebar-nav {
  padding: 8px 6px 20px;
  align-items: stretch;
}
.app-shell.sidebar-collapsed .nav-item {
  justify-content: center;
  padding: 10px 0;
  gap: 0;
}
.app-shell.sidebar-collapsed .nav-ico {
  width: auto;
  font-size: 1.05rem;
}
.app-shell.sidebar-collapsed .nav-group {
  position: relative;
}
.app-shell.sidebar-collapsed .nav-group .nav-sub {
  display: none;
  position: absolute;
  left: calc(100% + 8px);
  top: 0;
  min-width: 220px;
  padding: 8px;
  margin: 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  box-shadow: var(--shadow), 0 0 20px var(--brand-glow);
  z-index: 60;
}
.app-shell.sidebar-collapsed .nav-group.open .nav-sub {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.app-shell.sidebar-collapsed .nav-sub a {
  white-space: nowrap;
  padding: 8px 10px;
}
.main-wrap { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: var(--topbar-h); display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 30;
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 12px; }
.page-heading h1 { margin: 0; font-size: 1.05rem; font-family: var(--display); }
.brand-mini { display: block; font-size: .72rem; color: var(--brand); letter-spacing: .08em; text-transform: uppercase; }
.content { padding: 22px; }

.sidebar-brand { display: flex; gap: 12px; align-items: center; padding: 18px 16px; border-bottom: 1px solid var(--border); }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--brand), #ff9a4a);
  box-shadow: 0 0 18px var(--brand-glow);
}
.brand-text strong { display: block; font-size: .98rem; }
.brand-text small { color: var(--text-muted); }

.sidebar-nav { padding: 8px 8px 20px; display: flex; flex-direction: column; gap: 1px; }
.nav-item {
  display: flex; align-items: center; gap: 8px; width: 100%; border: 0; background: transparent;
  color: var(--text-muted); padding: 6px 10px; border-radius: 8px; cursor: pointer; text-align: left;
  font-size: .9rem; line-height: 1.25;
}
.nav-item:hover, .nav-item.active { background: rgba(255,108,12,.12); color: var(--text); box-shadow: inset 0 0 0 1px rgba(255,108,12,.25); }
.nav-item.active { color: var(--brand); }
.nav-ico { width: 18px; text-align: center; opacity: .85; font-size: .85rem; }
.nav-group .nav-sub { display: none; padding: 1px 6px 4px 32px; }
.nav-group.open .nav-sub { display: flex; flex-direction: column; gap: 0; }
.nav-sub a { color: var(--text-muted); padding: 4px 8px; border-radius: 6px; font-size: .84rem; line-height: 1.25; }
.nav-sub a:hover { background: rgba(255,108,12,.1); color: var(--text); }
.nav-sub a.active {
  color: var(--brand);
  background: rgba(255,108,12,.14);
  box-shadow: inset 0 0 0 1px rgba(255,108,12,.3);
  font-weight: 600;
}
.nav-group.open > .nav-toggle.active { color: var(--brand); }
.nav-toggle .caret { margin-left: auto; opacity: .6; }
.sidebar-overlay { display: none; }

.icon-btn {
  width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--bg-soft); color: var(--text); cursor: pointer; display: grid; place-items: center;
}
.icon-btn:hover { border-color: var(--brand); box-shadow: 0 0 14px var(--brand-glow); }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="light"] .icon-moon { display: none; }
.user-chip { display: flex; align-items: center; gap: 10px; color: var(--text-muted); font-size: .92rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 10px; padding: 10px 16px; cursor: pointer; font-weight: 600;
  background: var(--brand); color: #fff; box-shadow: 0 0 18px var(--brand-glow); transition: .2s ease;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn:disabled, .btn[disabled] {
  opacity: .45; cursor: not-allowed; transform: none; filter: none; box-shadow: none;
}
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); box-shadow: none; }
.btn-danger { background: var(--neon-red); box-shadow: 0 0 16px rgba(255,46,99,.35); }
.btn-secondary { background: #1f2b44; color: #fff; box-shadow: none; }
html[data-theme="light"] .btn-secondary { background: #334155; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.stat-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease;
  position: relative; overflow: hidden;
}
.stat-card::after {
  content: ""; position: absolute; inset: auto -20% -40% auto; width: 120px; height: 120px; border-radius: 50%;
  background: currentColor; opacity: .08; filter: blur(8px);
}
.stat-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,.35), 0 0 24px currentColor; }
.stat-card .label { color: var(--text-muted); font-size: .86rem; margin-bottom: 8px; }
.stat-card .value { font-size: 1.35rem; font-weight: 750; letter-spacing: .01em; }
.stat-card.neon-orange { color: var(--neon-orange); }
.stat-card.neon-blue { color: var(--neon-blue); }
.stat-card.neon-green { color: var(--neon-green); }
.stat-card.neon-purple { color: var(--neon-purple); }
.stat-card.neon-red { color: var(--neon-red); }
.stat-card.neon-cyan { color: var(--neon-cyan); }

.panel {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); margin-top: 18px;
}
.panel-title { margin: 0 0 14px; font-size: 1.05rem; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; min-width: 720px; }
table.data th, table.data td { padding: 11px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: .92rem; }
table.data th { color: var(--text-muted); font-weight: 600; white-space: nowrap; }
table.data tr:hover td { background: rgba(255,108,12,.04); }
.amount-plus { color: var(--neon-green); font-weight: 700; }
.amount-minus { color: var(--neon-red); font-weight: 700; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.form-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) {
  .form-grid-3, .form-grid-4 { grid-template-columns: 1fr; }
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .86rem; color: var(--text-muted); }
.form-group .req::after { content: " *"; color: var(--neon-red); }
.form-control, select.form-control, textarea.form-control {
  width: 100%; border: 1px solid var(--border); background: var(--input-bg); color: var(--text);
  border-radius: 10px; padding: 10px 12px; outline: none;
}
.form-control:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(255,108,12,.18); }
.form-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }

.alert, .toast {
  border-radius: 12px; padding: 12px 14px; margin-bottom: 12px; border: 1px solid transparent;
}
.alert-success, .toast-success { background: rgba(57,255,20,.1); border-color: rgba(57,255,20,.35); color: var(--neon-green); }
.alert-error, .toast-error { background: rgba(255,46,99,.1); border-color: rgba(255,46,99,.35); color: var(--neon-red); }
.toast { position: sticky; top: 76px; z-index: 20; }

.badge { display: inline-flex; padding: 3px 9px; border-radius: 999px; font-size: .75rem; font-weight: 700; }
.badge-ok { background: rgba(57,255,20,.15); color: var(--neon-green); }
.badge-warn { background: rgba(255,108,12,.15); color: var(--neon-orange); }
.badge-danger { background: rgba(255,46,99,.15); color: var(--neon-red); }
.badge-info { background: rgba(0,212,255,.15); color: var(--neon-blue); }

.progress { height: 10px; background: var(--bg-soft); border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--brand), #ff9a4a); box-shadow: 0 0 12px var(--brand-glow); }

.auth-body { min-height: 100vh; display: grid; place-items: center; position: relative; overflow: hidden; }
.auth-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,108,12,.25), transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(0,212,255,.18), transparent 30%),
    linear-gradient(160deg, #050914, #101a2e 50%, #070b14);
}
.auth-card {
  position: relative; width: min(420px, 92vw); background: rgba(15,22,38,.92);
  border: 1px solid rgba(255,108,12,.3); border-radius: 20px; padding: 28px;
  box-shadow: 0 0 50px rgba(255,108,12,.2);
}
.auth-brand { text-align: center; margin-bottom: 18px; }
.auth-logo {
  width: 64px; height: 64px; margin: 0 auto 10px; border-radius: 18px; display: grid; place-items: center;
  font-size: 1.8rem; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--brand), #ff9a4a);
  box-shadow: 0 0 28px var(--brand-glow);
}
.auth-brand h1 { margin: 0; color: var(--brand); }
.auth-brand p { margin: 6px 0 0; color: #9aa6c0; font-size: .9rem; }

.alert-list { display: flex; flex-direction: column; gap: 8px; }
.alert-item { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-soft); font-size: .9rem; }
.alert-item.warning { border-color: rgba(255,108,12,.4); }
.alert-item.danger { border-color: rgba(255,46,99,.4); }
.alert-item.info { border-color: rgba(0,212,255,.4); }

.field-hint { color: var(--text-muted); font-size: .78rem; margin-top: 2px; }

@media (max-width: 960px) {
  .sidebar {
    position: fixed; left: 0; top: 0; width: var(--sidebar-w) !important;
    transform: translateX(-105%); margin-left: 0 !important;
    transition: transform .25s ease;
  }
  .app-shell.sidebar-open .sidebar { transform: translateX(0); }
  .app-shell.sidebar-collapsed .sidebar { width: var(--sidebar-w) !important; transform: translateX(-105%); }
  .app-shell.sidebar-collapsed .brand-text,
  .app-shell.sidebar-collapsed .nav-label,
  .app-shell.sidebar-collapsed .caret { display: initial !important; }
  .app-shell.sidebar-collapsed .nav-item { justify-content: flex-start; padding: 6px 10px; gap: 8px; }
  .app-shell.sidebar-collapsed .nav-group .nav-sub {
    position: static; min-width: 0; box-shadow: none; border: 0; background: transparent; padding: 1px 6px 4px 32px;
  }
  .sidebar-overlay {
    display: block; position: fixed; inset: 0; background: rgba(0,0,0,.45); opacity: 0; pointer-events: none; z-index: 35;
  }
  .app-shell.sidebar-open .sidebar-overlay { opacity: 1; pointer-events: auto; }
  .content { padding: 14px; }
}